Dew-Not Heater Strip - 16" Scope
- Designed for 16" telescope optical tubes
- Total Strip Length: 55.0" (139.7cm)
- Heating Element Length: 54"
- Power Requirement: 25.8W at 12V DC
- Current Draw: 2.15 A
The Dew-Not Heater Strip for 16" scopes delivers a continuous 25.8 watts of power to keep large corrector plates and primary mirrors clear of condensation. This 55.0" strip contains a 54" thick-film heating element that draws 2.15 amps at 12V DC, providing gentle, evenly distributed warmth to prevent dew from ending your observing session.
Designed specifically for large-aperture instruments, this heater provides 25.8 watts of thermal power—enough to raise the optical surface temperature just above the dew point without introducing tube currents. Operating on standard 12V DC power, it ensures your 16" OTA remains free of dew throughout the night, preserving image contrast and clarity.
This heater strip measures 55.0" in total length, ensuring full coverage around the circumference of a 16" optical tube. The outer surface features foam insulation to direct heat inward toward the optics, maximizing efficiency and minimizing power consumption. A robust velcro closure provides a secure, non-slip fit that stays in place all night.
Unlike older resistance-wire heaters that concentrate heat along a thin wire, the Dew-Not uses a 54" long thick-film element where 66% of the surface area radiates heat. This design eliminates the hot spots and potential burnouts common in wire-based systems. The result is a more uniform thermal profile across your optics, superior reliability, and more efficient dew prevention.
The Dew-Not DN015 heater strip consumes 25.8 watts of power and draws 2.15 amps when operating at its rated 12V DC. This is a critical figure for calculating the battery life of your field power supply for an entire night of observing.
Yes, this heater strip is designed for 16" OTAs. Its 55.0" length provides ample circumference to wrap securely around the main tube of most commercial 16" Schmidt-Cassegrain, Ritchey-Chrétien, or similar large-aperture telescopes. While designed for 16" scopes, its length would also be sufficient for a 14" model.
Yes, a dew controller is required. This heater strip terminates in a standard RCA-style plug and does not have a built-in regulator. You must connect it to a multi-channel dew controller, which allows you to adjust the power output based on ambient temperature and humidity.
The heating element itself has a length of 54 inches. The overall strip is 55.0" long to accommodate the velcro fasteners and provide a slight overlap for a secure fit without placing stress on the element.
When imaging faint nebulae, even a thin layer of dew on your corrector plate can scatter light, reduce contrast, and obscure faint details. By applying a gentle 25.8W of heat, this strip keeps your optics just above the dew point, ensuring maximum light transmission and contrast for the entire duration of your multi-hour imaging session.
The primary advantage is even heat distribution. Resistance wires create narrow lines of intense heat, which can lead to localized hot spots and uneven warming. The Dew-Not's thick-film technology provides a broad, uniform heating surface, which is more efficient, reliable, and safer for your optical coatings over the long term.
| MPN | DN015 |
| Fits Telescope Aperture | 16" |
| Fits Telescope Models | 16" OTAs |
| Total Strip Length | 55.0" (139.7cm) |
| Heating Element Length | 54" |
| Voltage | 12V DC |
| Power | 25.8 W |
| Current | 2.15 A |
Dew-Not Heater Strip - 16" Scope
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